Toasting
While this answer probably wasn’t what the host had in mind, this woman isn’t wrong. An effective way of “toasting” someone, or something, would be over a fire. While it’s technically true, we’re not sure this woman received any points for this answer. We almost hope she didn’t.
Some people have a tendency to take everything too literally, and it often leads to pretty hilarious situations. Also, it can be confusing when words have different meanings, such as “toast”. Why do they even call it “giving a toast”? Apparently, it dates back to the 16th century, when it was a common practice to drop a piece of toast in one’s drink.